Bitcoin is digital gold. Is gold money? No. So bitcoin is not money.
gold is indeed money. Historically, that has been it's primary use. That it also has industrial uses is irrelevant.
That most countries no longer view it as money has a lot to do with deliberate disinformation by a group of talented liars and their less talented useful idiots. Prior to 1944, the whole world viewed gold as money. Prior to 1971, most of the world still did. In 1971 the link between fiat and gold was broken definitively, to allow for a free floating currency so that governments no longer had ANY restraint on their nefarious activities.
Bitcoin is more like Milton Friedman's idea of money (Peer to Peer coin even more so), where a computer or network controls the rate of inflation.
I think Bitcoin is useful and interesting, and yes, money. It is used as a medium of exchange beyond direct barter, it is portable, durable, and easily divisible without incurring total loss by division. It meets all the criteria except being a stable store of value, and frankly only precious metals have really stood up to that test. Even then, shakily. I think Bitcoin has the capability of doing so for the same reason: Scarcity. I suspect that it will be that most feared (by Keynesians) of monetary units, the deflationary model.
Deflation, contrary to Keynes, is generally a GOOD thing in a money. Sure, it makes prices go down over time, but that's not because the VALUE of goods goes down, it's because the value of the currency goes UP! So if the unit value changes upward, causing a decline in prices, this is good for all involved except accountants who tend to view things only from the POV of their books.
I am reminded yet again of the "useful idiots" who decried Ford paying their workers five dollars a week. They were arguing on imposing a minimum wage, and using a historical example completely out of context. So, here's the context. Ford was paying almost TWICE the going labor rate for skilled workers, and that payment was in a currency backed by gold. Specifically, they were being paid five dwt a week. Given today's price of gold, that equals out to 346.25 a week. And gold just took a hit vs. the dollar. At minimum wage, excluding tax (which in the time frame we're discussing didn't exist on such low incomes) you would make 290 a week right now. Since even at minimum wage the combined leeching is in the neighborhood of 15% (prior to refunds, if any) and Ford's workers paid AT WORST 1%, the comparison falls the hell apart. Gold deflated significantly vs. the dollar, now that it is free floating and inflationary. Yet it's PURCHASING ABILITY is about the same. A model T cost, at it's lowest, $300.00, or 15 oz. troy of gold. Today, that is $20,775. That will in fact buy you several different cars all significantly superiour to the Model T.
Fiat hasn't fared well against deflationary currency, and if you've been paying attention, the "owners" of the fiat (central banks and their pet politicians) have been investing quietly but heavily in gold. Why? Because they KNOW that the ponzi scheme known as Fiat currency inflation has to end, and that it ends badly for those who hold nothing else.
Where bitcoin will figure into all of this is hard to tell, but it's biggest uptick was in the wake of the central banks of Cypress, with the IMF's hearty approval, confiscating the accumulated fiat wealth of practically everyone on the island. From the time the writing was on the wall to the time the trigger was pulled, a lot of people bought bitcoins as an escape from the dirty trick. A lot of you on this forum benefited from that, but so did those Cyprians who managed to save a bit of their treasure. It certainly gained the bitcoin some legitimacy AS MONEY.
I think the cryptocurrency idea is a good one. Flawed in some ways, but all monetary systems are. By decentralizing the notes, you take away a lot of the ability to abuse it. By being deflationary, it's perceived value is likely to increase over time. It's not a good substitute for precious metals for long term valuation, but it's a good substitute for centralized fiat.
I have a lot more questions than answers at the moment, so I'll end this here for now.